package rbar_util

import (
	"os"
	"io"
	"path/filepath"
	"strings"
	"errors"

	"fmt"
)

func GlobEscape(lit string) string {
	glob := lit
	glob = strings.Replace(glob, "\\", "\\\\", -1)
	glob = strings.Replace(glob, "*", "\\*", -1)
	glob = strings.Replace(glob, "?", "\\?", -1)
	glob = strings.Replace(glob, "[", "\\[", -1)
	return glob
}

var NoRbar = errors.New("no WMII rbars found")

func Write(filename string, msg string) error {
	dirnames, _ := filepath.Glob(GlobEscape(os.Getenv("XDG_RUNTIME_DIR"))+"/wmii*/rbar")
	if len(dirnames) == 0 {
		return NoRbar
	}
	for _, dirname := range dirnames {
		file, err := os.OpenFile(filepath.Join(dirname, filename), os.O_WRONLY| os.O_APPEND|os.O_CREATE, 0666)
		if err != nil {
			continue
		}
		io.WriteString(file, msg)
		file.Close()
	}
	return nil
}

func Remove(glob string) {
	fmt.Println("remove", glob);
	fullglob := GlobEscape(os.Getenv("XDG_RUNTIME_DIR"))+"/wmii*/rbar/"+glob
	fmt.Println("glob", fullglob)
	filenames, err := filepath.Glob(fullglob)
	fmt.Println("globerr", err)
	for _, filename := range filenames {
		os.Remove(filename)
	}
}